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Individual Disability Allocation WA: How IDA Funding Works in WA Schools

Many WA parents assume that once their child has a diagnosis, school funding follows automatically. They're about to be disappointed. The Individual Disability Allocation (IDA) is the targeted, high-need funding category in WA's school system — and it has strict eligibility rules, a formal application process, and a reality regarding how the money is spent that often surprises families.

What the IDA Is (and Is Not)

The IDA is supplementary, targeted funding allocated to schools for students with severe, complex educational needs. It sits above the baseline disability loading that schools receive through the Nationally Consistent Collection of Data (NCCD) process. Most students who receive any adjustment at school are funded through that baseline NCCD loading — the IDA is specifically for students at the higher end of need.

Critically, the IDA is not a voucher. It is not ring-fenced money designated specifically for your child. When a school receives an IDA allocation for a student, that funding goes into the school's budget. The principal has discretion over how it is deployed to meet the student's educational needs — which may include shared Education Assistant hours, specialist equipment, or teacher professional development.

This means you cannot legally compel a school to use IDA funding to hire a dedicated one-on-one aide for your child. The school determines the most educationally effective use of the funds, guided by (but not bound to) the recommendations in the Documented Plan.

The Eight IDA Categories

IDA eligibility is restricted to students whose primary diagnosis falls within one of eight defined categories. This is where many families hit the first wall.

The eight categories are:

  1. Autism Spectrum Disorder
  2. Deaf and Hard of Hearing
  3. Global Developmental Delay
  4. Intellectual Disability
  5. Physical Disability
  6. Severe Medical Health Condition
  7. Severe Mental Health Disorder
  8. Vision Impairment

ADHD, dyslexia, dyspraxia, sensory processing disorder, and anxiety — on their own — do not qualify. This doesn't mean those students don't need support; it means the school accesses the Educational Adjustment Allocation (EAA) for them rather than the IDA. The EAA is discretionary funding managed at the school level, which is why parents of children with these diagnoses often find EA support more variable and harder to secure.

Note the alignment gap: the IDA criteria haven't been updated to reflect the 2023 Autism CRC Diagnostic Guidelines. A diagnosis made under the newer clinical framework may still need to be mapped explicitly to DoE criteria — which is one of the more frustrating bureaucratic hurdles currently affecting WA families.

The Seven IDA Funding Levels

If your child's diagnosis falls within one of the eight categories, IDA doesn't result in a flat payment. The school's Learning Support Coordinator applies for a specific funding level based on the severity of the diagnosis and the intensity of the educational adjustments required. There are seven IDA levels, generating progressively larger allocations.

The application requires rigorous documentation:

  • Diagnostic reports from qualified practitioners
  • Evidence of functional impact in the educational setting
  • The student's current Documented Plan demonstrating existing adjustments and their limitations
  • Data on the student's level of adjustment under the NCCD framework (Supplementary, Substantial, or Extensive)

For most high-need students, the IDA application will require Substantial or Extensive NCCD-level evidence. A student assessed at Extensive triggers a 312% Schooling Resource Standard funding loading — the IDA builds on top of this baseline.

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How to Apply: The School's Role

The IDA application is submitted by the school's Learning Support Coordinator, not the parents. Your role is to ensure the LSC has the strongest possible documentation.

What you can do:

  • Provide current allied health reports that align with DoE diagnostic criteria
  • Ensure reports map the child's deficits to specific functional educational impacts — not just clinical descriptions
  • Request that the LSC explicitly confirm what level of IDA they're applying for and why
  • Ask for a copy of the application before it's submitted so you can review whether the evidence is complete

The WA Department of Education has historically made the specific diagnostic criteria for each IDA category available on their website. More recently, these criteria have been moved behind the staff intranet — meaning parents and private practitioners can no longer see exactly what medical evidence is required. This is a significant transparency problem. If you're uncertain whether your child's diagnostic report meets the criteria, engage an educational advocate or contact DDWA (Developmental Disability WA) for guidance.

If You're in the EAA Category Instead

The Educational Adjustment Allocation (EAA) is the school's discretionary funding for students who need adjustments but don't meet IDA eligibility. EAA has no formal application — it is simply included in the school's base funding.

The challenge with EAA is accountability. Because it's discretionary, parents have less leverage to demand specific support arrangements. The legal foundation remains the same — the Disability Standards for Education 2005 still mandates reasonable adjustments — but the funding mechanism gives the principal more discretion over how needs are met.

If your child receives EAA-level support rather than IDA, the strategy shifts to ensuring the Documented Plan contains specific, measurable adjustments that can be enforced under the DSE regardless of the funding source.


If you're navigating an IDA application, an EAA dispute, or trying to understand how WA's school funding model affects your child's support, the Western Australia Disability Support Blueprint maps the complete funding pathway with the documentation checklist required at each stage.

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